Upgraded from Linux Mint 21.3 to Linux Mint 22 and now boots to black screen

You dont need a fresh install.
Just use the 6.8.0-39 kernel. You can set grub to push 6.8.0-39 to the top of the boot menu.
Does Mint have a facility to delete kernels? If so get rid of it… it seems to have a kernel regression error.
A new kernel should soon appear with updates.

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